Although the car of the work chair in the garage was rattled with resin and shaken, it was uncomfortable because of its compatibility with concrete, but by making it rubber, quiet movement and no scraping of concrete.

The performance of the caster is good, the movement is light and sufficiently reach the purpose. It is necessary to prepare a spanner in which the thickness of the head part of the screw part is thin and meet it.

Due to differences in durability and performance from the parts attached from the beginning, very smooth movement became dramatically improved by replacing. It is a little expensive because replacement of the wheel is also possible, but it was good to replace.